Hi, Everyone's got you covered with great advice as usual. You're doing a great job of caring for his paw, and I agree that it looks like a bee or wasp sting. I'm glad he's improving and feeling better, and I hope it clears up soon, but also agree if it's not better in a couple more days, I would take him to the vet to make sure there isn't a stinger stuck in his paw. I learned two new things from this post, one is the benefits of Peppermint Oil, and also that you can treat bee stings with a banana peel. I love natural remedies.